[Bug c/100618] Add a -fno-semantic-interposition variant which allows variable interposition

[i at maskray dot me via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100618

Fangrui Song <i at maskray dot me> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         Resolution|---                         |FIXED
             Status|UNCONFIRMED                 |RESOLVED

--- Comment #4 from Fangrui Song <i at maskray dot me> ---
Clang 13  -fno-semantic-interposition will be mostly consistent with GCC 
-fno-semantic-interposition. It looked like a misunderstand from my side.